<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div {
            width: 100px;
            height: 100px;
            border: 1px solid red;
        }

        span {
            width: 100px;
            height: 100px;
            border: 1px solid red;
            /*span默认为行内元素是不能修改宽高的
            如果非要修改则需要将span改成块级元素或行内块元素*/
            display: block;
        }

        img {
            width: 100px;
            height: 100px;
        }

        a {
            width: 132px;
            height: 40px;
            background-color: #0aa1ed;
            display: block;
            text-align: center;
            line-height: 40px;
            font-size: 20px;
            color: aliceblue;
            text-decoration: none;
            /*圆角*/
            border-radius:2px ;
        }

    </style>
</head>
<body>
<a href="">查看详情</a>
<div>div1</div>
<div>div2</div>
<div>div3</div>
<span>span1</span>
<span>span2</span>
<span>span3</span>
<img src="004850-16352669303368.jpg" alt="">
<img src="004850-16352669303368.jpg" alt="">
<img src="004850-16352669303368.jpg" alt="">
</body>
</html>